431525113 has 2 divisors, whose sum is σ = 431525114. Its totient is φ = 431525112.

The previous prime is 431525111. The next prime is 431525137. The reversal of 431525113 is 311525134.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329676649 + 101848464 = 18157^2 + 10092^2 .

It is a cyclic number.

It is not a de Polignac number, because 431525113 - 2¹ = 431525111 is a prime.

Together with 431525111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (431525111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215762556 + 215762557.

It is an arithmetic number, because the mean of its divisors is an integer number (215762557).

Almost surely, 2^431525113 is an apocalyptic number.

It is an amenable number.

431525113 is a deficient number, since it is larger than the sum of its proper divisors (1).

431525113 is an equidigital number, since it uses as much as digits as its factorization.

431525113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 431525113 is about 20773.1825438472. The cubic root of 431525113 is about 755.6755283160.

The spelling of 431525113 in words is "four hundred thirty-one million, five hundred twenty-five thousand, one hundred thirteen".